Question

303k पर250ml जल में 11ग्राम ग्लूकोस को घोलकर उसका जलीय विलयन बनाया गया ग्लूकोस विलयन में ग्लूकोस की द्रव्यमान प्रतिशत क्या है ?303k पर जल का घनत्व 0.996ग्राम/मिली है ।

Answer 1

Answer: -

Given:

Mass of glucose = 11 grams

Volume of water = 250 ml

Temperature = 303 K

The density of water at 303 K = 0.996 g / ml.

We know that,

Density = mass / volume

Hence,

0.996 = mass of water / 250

→ Mass of water = 250 * 0.996

→ Mass of water = 249 g

Mass Percentage = (mass of the compound/Total mass of the solution) * 100

→ Mass % of Glucose = [ 11 / (249 + 11) ] * 100

→ Mass % of Glucose = (11/260) * 100

→ Mass % of Glucose = 4.23 %